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Robust Hvar

#2580d3
Notes

Robust Hvar (#2580D3) is a true azure with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (209°, 70%, 49%) places it in the balanced band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. For a confident two-color system, pair it with its complementary orange. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#2580d3
RGB
rgb(37, 128, 211)
HSL
hsl(209, 70%, 49%)
HWB
hwb(209 15% 17%)
OKLCH
oklch(59.0% 0.151 250.7)
P3
color(display-p3 0.2566 0.4949 0.8031)
HSV
hsv(209, 82%, 83%)
LAB
lab(52.43% 3.58 -49.99)
LCH
lch(52.43% 50.12 274.10)
CMYK
cmyk(82%, 39%, 0%, 17%)

Etymology

Robust
adjective

From the Latin robustus, of oak — implying strength combined with substance. As a color modifier, robust describes saturation combined with body: a robust burgundy, a robust olive. Sits in the bold-and-warm corner alongside strong and solid, with the slightly textural implication of a color that has substance behind the pigment.

Hvar
noun

The Croatian Adriatic island — and the saturated blue of Hvar's lavender fields, Pakleni Islands archipelago waters, and Stari Grad harbor. Hvar color refers to the lagoon between Hvar and Pakleni: a saturated, slightly cool deep blue with the optical clarity of cold Adriatic water.

Closest matches

The nearest named color in three reference sources, ranked by perceptual distance (ΔE76 in CIELAB). ΔE < 1 is imperceptible to most viewers; ΔE > 10 is clearly different. When two sources point to the same hex they’re merged into one tile; click any to open that color’s page.

Variations

Click any swatch to explore

Harmonies

Accessibility

Color-vision simulation

How this color appears to viewers with the four major color-vision-deficiency types. Computed via the Machado (2009) physiologically-based model. If a tile matches the original, the color reads the same to that viewer.

#2580d3
Original
#5886d6
Protanopia
#3b76d1
Deuteranopia
#00949f
Tritanopia
#737373
Achromatopsia
WCAG contrast

The color used as foreground text against pure white and pure black, with the contrast ratio and WCAG 2.1 grade. Aim for AA (4.5:1) for body text and AA Large (3:1) for 18 pt+ headlines; AAA (7:1) is the gold standard for long-form reading surfaces.

The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon White
4.11:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
5.11:1

Wide gamut

Display P3 representation

The CSS Color 4 wide-gamut form of this color. Both swatches render the same color on every display — the P3 form only diverges from sRGB when a designer pushes channels outside sRGB's reach.

sRGB hex
sRGB hex
##2580D3
Display P3
Display P3
color(display-p3 0.2566 0.4949 0.8031)
P3 has subtle headroomOKLCH chroma 0.151

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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